After serving in Nazi Germany's Kriegsmarine in the Norwegian Campaign that followed the invasion, she was renamed Tarantel and employed as a Vorpostenboot in occupied Norway.

In calm seas the boats were hard to spot, with little engine noise or bow wave, which increased the chance of a successful torpedo attack.

In addition to the torpedo boats the Royal Norwegian Navy deployed the coastal defence ships Harald Haarfagre and Tordenskjold and the gunboat Frithjof on a cruise to Marstrand in Sweden and Kiel in Germany.

During their stay in Ålesund, the torpedo boat's crew deactivated or destroyed 17 naval mines, and were also put and stand-by to intervene in riots between locals and fishermen in Fosnavåg.

[12] In February 1919, the crew of Brand rescued two survivors from the shipwrecked fishing vessel Korsfjord I, which had run aground with the loss of seven crewmen.

[13] Between the world wars, the Norwegian torpedo boat fleet carried out exercises during the summers, but were severely restricted by a lack of funds.

The 1939 mobilization of both the Royal Norwegian Navy and the coastal artillery was less comprehensive than that in 1914, due to a lack of trained crews and officers to man the ships.

[17][18] Brand was under the command of Second Lieutenant Ivar Arne Midtland, and carried out escort missions along the Norwegian coast after the outbreak of war.

[21][22] Reports of fighting between Norwegian coastal fortresses and foreign warships in the Oslofjord further east reached the 2nd Naval District at 00:28 on 9 April.

In response to the reports, naval mines were laid in the leads off Bergen and torpedo boats deployed to intercept any possible intruders making their way towards the city.

After removing his ship from her defensive position, Second Lieutenant Midtland brought Brand to port in Laksevåg, before leaving the boat and crew and heading to Marineholmen, where he was quickly interned by the Germans.

As Brand was landing German troops on the south side of the island, a British Blackburn Skua dive bomber attacked the torpedo boat at around 07:00.

Brand was struck in the boiler room amidships by a bomb that failed to explode and severely damaged, the German crew suffering casualties.

[2][36][37][38] A German sailor who had been thrown overboard by the bomb and swam ashore at Isdalstø was captured by Norwegian troops and brought to Balestrand on 17 April.

[40][41] After completing repairs in Bergen, Brand was deployed in late April 1940 for patrols of the entrance to the Sognefjord, scouting for Norwegian naval forces and escorting the German-controlled minelayers Uller and Tyr.

The Germans rebuilt her slightly during the war years, including adding an enclosed bridge, two machine guns and six depth charges.